Moving client and player data into manager classes

Remember: anything with "manager" in its name organizes a number of other
objects, as far as I'm concerned.

I'll eventually have a database connection in the PlayerManager class;
this'll make it easier to manage the database.

server/client.hpp

@@ -1,38 +0,0 @@
-/* Copyright: (c) Kayne Ruse 2013
- * 
- * This software is provided 'as-is', without any express or implied
- * warranty. In no event will the authors be held liable for any damages
- * arising from the use of this software.
- * 
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- * 
- * 1. The origin of this software must not be misrepresented; you must not
- * claim that you wrote the original software. If you use this software
- * in a product, an acknowledgment in the product documentation would be
- * appreciated but is not required.
- * 
- * 2. Altered source versions must be plainly marked as such, and must not be
- * misrepresented as being the original software.
- * 
- * 3. This notice may not be removed or altered from any source
- * distribution.
-*/
-#ifndef CLIENT_HPP_
-#define CLIENT_HPP_
-
-#include "SDL/SDL_net.h"
-
-#include <map>
-
-/* Hold the client info.
-*/
-
-struct Client {
-	IPaddress address;
-};
-
-typedef std::map<int, Client> ClientMap;
-
-#endif